Fireninja2003
Mabel Pines was always a strange girl.
But all of that changed when she went to the strangest place in all of the world, Gravity Falls. During the summer she fought gnomes, ghosts, and even demons. But what will happen when summer ends and it's time to return home? Well after a little begging on her part, her parents allow her to spend her 13th birthday in Gravity Falls. So now with the truth out and in the open, and with trust issues Mabel's life gets a bit more hectic. I mean it's not like she learned she's a demon or anything, oh wait...
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Disclaimer: This is a Fan-Made story. All concepts and ideas contained within are mine. In this AU Mabel and Dipper were never siblings, Dipper was raised in the Nightmare Realm with his parents, Mabel was the only one abducted at birth. Again, Dipper was raised as a demon, Mabel was raised as a human.
©All Rights of Gravity Falls and characters belong to Alex Hirsch and Disney Channel. Only the story and concept are mine.